The kid that does really well in school, makes it big is going to have an opportunity for a lot more play later in life. The kid who does nothing but play will probably end up having very little opportunity and have to work long hours later in life to barely make ends meet with lots of stress and little opportunity for play. So its a trade off.

Obviously if the kid comes from a rich family that is willing to support and leave all of their money to the kid that changes the equation, but I have seen examples where those kids still ended up as drug addicts etc..